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Playground demo key · api.reefapi.com
post/validate/v1/vat1 credit

Validate an EU VAT number via VIES → validity + registered company name & address.

Working example
Parameters

The VAT number to validate against EU VIES. Either a full VAT incl. the 2-letter country prefix (e.g. 'IE6388047V', 'DE811569869') or just the digits when you also pass `country`. Spaces/dots/dashes are ignored.

ISO-3166 / VIES country code for the VAT number (e.g. DE, FR, IE, NL). Optional if `vat_number` already starts with the prefix. VIES uses EL for Greece and XI for Northern Ireland; GR/GB are accepted and mapped.

request preview
curl -X POST https://api.reefapi.com/validate/v1/vat \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"vat_number":"IE6388047V"}'

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